GB611817A - Improvements in or relating to trip means for electric circuit breakers - Google Patents

Improvements in or relating to trip means for electric circuit breakers

Info

Publication number
GB611817A
GB611817A GB14036/46A GB1403646A GB611817A GB 611817 A GB611817 A GB 611817A GB 14036/46 A GB14036/46 A GB 14036/46A GB 1403646 A GB1403646 A GB 1403646A GB 611817 A GB611817 A GB 611817A
Authority
GB
United Kingdom
Prior art keywords
armature
latch
core
trip means
yoke
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB14036/46A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Westinghouse Electric International Co
Original Assignee
Westinghouse Electric International Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westinghouse Electric International Co filed Critical Westinghouse Electric International Co
Publication of GB611817A publication Critical patent/GB611817A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/40—Combined electrothermal and electromagnetic mechanisms
    • H01H71/405—Combined electrothermal and electromagnetic mechanisms in which a bimetal forms the inductor for the electromagnetic mechanism

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)

Abstract

611,817. Automatic circuit-breakers. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. May 9, 1946, No. 14036. Convention date, May 9, 1945. [Class 38 (v)] A trip means suitable for the automatic circuit-breaker described in Specification 611,686 comprises a magnetic core 63 and armature 65 carried by, respectively, a bimetal strip 45 and a resilient member 69, which is secured to the strip at 73 and carries a latch 67. The operating point of the bimetal strip is adjustable by a screw 85, as described in the above-mentioned Specification, and is independent of the setting for the electromagnetic trip, which is for dealing with short-circuits. In Fig. 3, the armature carries the latch 115, and is pivoted to the core at 109, an adjustable spring 117 controlling the setting. The armature may, alternatively serve as a latch, and be pivotally supported in a yoke secure to the core, the armature normally resting against a stop provided by a bendable part of the yoke.
GB14036/46A 1945-05-09 1946-05-09 Improvements in or relating to trip means for electric circuit breakers Expired GB611817A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US592804A US2624816A (en) 1945-05-09 1945-05-09 Circuit breaker
US287018A US2677026A (en) 1945-05-09 1952-05-09 Circuit breaker

Publications (1)

Publication Number Publication Date
GB611817A true GB611817A (en) 1948-11-04

Family

ID=24372133

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14036/46A Expired GB611817A (en) 1945-05-09 1946-05-09 Improvements in or relating to trip means for electric circuit breakers

Country Status (3)

Country Link
US (2) US2624816A (en)
DE (1) DE823755C (en)
GB (1) GB611817A (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE875063C (en) * 1948-10-02 1953-04-30 Siemens Ag Small circuit breaker with direct current flowing through the bimetal release
US2824191A (en) * 1953-02-05 1958-02-18 Fed Electric Prod Co Circuit breakers
NL186856B (en) * 1953-04-22 Ucb Sa PROCEDURE FOR CATALYTIC HYDROGENOLYZING OF MALEIC ANHYDRIDE.
US2813167A (en) * 1953-07-21 1957-11-12 Westinghouse Electric Corp Circuit breaker
US2776349A (en) * 1954-10-20 1957-01-01 Gen Electric Magnetic thermal trip
US2904655A (en) * 1954-10-28 1959-09-15 Westinghouse Electric Corp Circuit breaker
US2902560A (en) * 1955-05-18 1959-09-01 Square D Co Circuit breaker
US3098136A (en) * 1955-06-09 1963-07-16 Square D Co Circuit breaker
NL208037A (en) * 1955-06-17
US3165609A (en) * 1955-08-04 1965-01-12 Fed Pacific Electric Co Temperature compensated circuit breakers
US2847533A (en) * 1956-06-11 1958-08-12 Fed Pacific Electric Co Circuit breakers
US2897314A (en) * 1956-06-11 1959-07-28 Fed Pacific Electric Co Circuit breakers with thermal and magnetic tripping
US3179767A (en) * 1956-06-21 1965-04-20 Wadsworth Electric Mfg Co Circuit breaker with improved electromagnetic tripping device
US2866027A (en) * 1956-10-04 1958-12-23 Westinghouse Electric Corp Circuit breaker
US2989604A (en) * 1957-04-04 1961-06-20 Gen Electric Circuit breaker
US3178535A (en) * 1957-04-12 1965-04-13 Westinghouse Electric Corp Automatic circuit breaker with improved bimetallic and electromagnetic trip device
US3110786A (en) * 1959-11-03 1963-11-12 Westinghouse Electric Corp Electromagnetic thermal current circuit breaker
US3134000A (en) * 1960-10-14 1964-05-19 Square D Co Electric circuit breaker with tandem arranged mechanisms
US3200217A (en) * 1962-03-27 1965-08-10 Westinghouse Electric Corp Circuit breaker with thermal and magnetic trip means
US3418607A (en) * 1966-02-16 1968-12-24 Westinghouse Electric Corp Circuit breaker with improved trip means
US3487343A (en) * 1967-12-21 1969-12-30 Ite Imperial Corp Circuit breaker thermal and magnetic tripping mechanism
US5381120A (en) * 1993-11-15 1995-01-10 General Electric Company Molded case circuit breaker thermal-magnetic trip unit
MX2014010199A (en) * 2012-02-28 2014-11-21 Siemens Ag Circuit breaker thermal-magnetic trip units and methods.

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US645902A (en) * 1898-08-25 1900-03-20 Cleveland Machine Screw Company Motor-gearing.
US1298701A (en) * 1916-06-13 1919-04-01 Union Switch & Signal Co Magnetic device.
US1448383A (en) * 1918-06-17 1923-03-13 Westinghouse Electric & Mfg Co Switching device
DE597445C (en) * 1928-07-25 1934-05-25 Schiele & Bruchsaler Industrie Overcurrent release for electrical switches
US2027238A (en) * 1930-11-26 1936-01-07 Westinghouse Electric & Mfg Co Circuit breaker
DE616133C (en) * 1932-03-23 1935-07-20 Siemens Schuckertwerke Akt Ges Electric switch with electromagnetic and electrothermal release and momentary switching on and off by means of a snap spring mechanism
US2035743A (en) * 1934-03-29 1936-03-31 Bulldog Electric Prod Co Circuit breaker
US2184372A (en) * 1937-01-27 1939-12-26 Gen Electric Circuit breaker
US2089716A (en) * 1937-01-29 1937-08-10 Gen Electric Circuit breaker
USRE22218E (en) * 1937-06-18 1942-11-03 Circuit breaker
US2265030A (en) * 1938-03-25 1941-12-02 Westinghouse Electric & Mfg Co Circuit breaker
US2328458A (en) * 1940-11-07 1943-08-31 Square D Co Circuit breaker
US2300884A (en) * 1941-03-24 1942-11-03 Westinghouse Electric & Mfg Co Circuit interrupter
US2312168A (en) * 1941-07-25 1943-02-23 Square D Co Circuit breaker
US2370340A (en) * 1942-07-07 1945-02-27 Chase Shawmut Co Circuit breaker
US2424909A (en) * 1942-12-30 1947-07-29 Frank Adam Electric Co Circuit interrupting device
US2573306A (en) * 1948-08-11 1951-10-30 Gen Electric Electric circuit breaker
US2573307A (en) * 1949-05-03 1951-10-30 Gen Electric Calibration of electric circuit breakers
US2568423A (en) * 1950-07-07 1951-09-18 Westinghouse Electric Corp Circuit breaker

Also Published As

Publication number Publication date
DE823755C (en) 1951-12-06
US2624816A (en) 1953-01-06
US2677026A (en) 1954-04-27

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